Mcintosh Mc 162 Users Manual Mc16om02.pm6

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McIntosh Laboratory, Inc. 2 Chambers Street Binghamton, New York 13903-2699 Phone: 607-723-3512 FAX: 607-724-0549

OWNERS

MANUAL

MC162

MC162 Power Amplifier

2

Thank You.......................................................................... 2

Please Take a Moment ....................................................... 2

Customer Service............................................................... 2

Table of Contents ............................................................... 2

Safety Instructions ............................................................. 3

Introduction ....................................................................... 4

Performance Features ........................................................ 4

Installation ......................................................................... 5

Rear Panel Controls and Connections ............................... 6

How to Connect ................................................................. 7

Front Panel Displays and Controls .................................... 8

How to Operate.................................................................. 9

Specifications .................................................................. 10

Packing Instruction .......................................................... 11

NOTES:

1. Connecting Cables are available from the McIntosh Parts

Department:

Data and Power Control Cable Part No. 170-202

Six foot, shielded 2 conductor, with 1/8 inch stereo mini

phone plugs on each end.

2. For additional connection information, refer to the owners

manual(s) for any component(s) connected to the MC162

Amplifier.

3. There is a built-in turn on delay which will mute the speaker

outputs for approximately two seconds when the amplifier is

turned on.

4. It is very important that loudspeaker cables of adequate size

be used in your music system, to ensure that there will be no

power loss or heating. Cable size is specified in Gauge

numbers or AWG, (American Wire Gauge). The smaller the

Gauge number, the larger the wire size:

If your loudspeaker cables are 25 feet (7.62m) or less,

use at least 18 Gauge (AWG) wire size or larger.

If your loudspeaker cables are 50 feet (38.1m) or less,

use at least 16 Gauge (AWG) wire size or larger.

If your loudspeaker cables are 100 feet (76.2m) or less,

use at least 14 Gauge (AWG) wire size or larger.

Customer Service

Copyright 1998  by McIntosh Laboratory, Inc.

Thank You, Please Take A Moment,

Customer Service and Table of Contents

Thank You

Please Take A Moment

The serial number, purchase date and McIntosh dealer name

are important to you for possible insurance claim or future

service. The serial number is located on the rear panel of the

equipment. The spaces below have been provided for you to

record that information:

For your decision to own this McIntosh MC162 Power

Amplifier ranks you at the very top among discriminating

music listeners. You now have The Best. The McIntosh

dedication to Quality, is assurance that you will receive

many years of musical enjoyment from this unit.

Please take a short time to read the information in this

manual. We want you to be as familiar as possible with all

the features and functions of your new McIntosh MC162.

This will ensure that you receive all the performance ben-

efits this equipment can offer you, and that it will become a

highly valued part of your home entertainment system.

If at any time you have questions about your McIntosh

MC162 Power Amplifier, contact your McIntosh dealer.

Your dealer is familiar with your McIntosh equipment as

well as other brands that may be included in your system

and is best qualified to help you.

If it is determined that your MC162 is in need of repair,

you can return it to your dealer or you can return it to

McIntosh Laboratory. Contact the McIntosh Repair Depart-

ment for assistance at,

McIntosh Laboratory, Inc.

2 Chambers Street

Binghamton, New York 13903

Phone: 607-723-3512

FAX: 607-724-0549

Table of Contents

Serial Number:

Purchase Date:

Dealer Name:

3

IMPORTANT SAFETY

INSTRUCTIONS!

PLEASE READ THEM BEFORE

OPERATING THIS EQUIPMENT.

Safety Instructions

General:

1. Read all the safety and operating instructions, contained

in this owners manual, before operating this equipment.

2. Retain this owners manual for future reference about

safety and operating instructions.

3. Adhere to all warnings and operating instructions.

4. Follow all operating and use instructions.

5. Warning: To reduce risk of fire or electrical shock,

do not expose this equipment to rain or moisture.

This unit is capable of producing high sound pressure

levels. Continued exposure to high sound pressure

levels can cause permanent hearing impairment or

loss. User caution is advised and ear protection is

recommended when playing at high volumes.

6. Caution: to prevent electrical shock do not use this

(polarized) plug with an extension cord, receptacle

or other outlet unless the blades can be fully inserted

to prevent blade exposure.

Attention: pour pevenir les chocs elecriques pas

utiliser cette fiche polarisee avec un prolongateur,

une prise de courant ou un autre sortie de courant,

sauf si les lames peuvent etre inserees afond ans en

laisser aucune partie a decouvert.

7. For added protection for this product during a lightning

storm, or when it is left unattended and unused for long

periods of time, unplug it from the wall outlet and dis-

connect the antenna or cable system. This will prevent

damage to the product due to lightning or power line

surges.

8. Do not use attachments not recommended in this

owners manual as they may cause hazards.

Installation:

9. Locate the equipment for proper ventilation. For ex-

ample, the equipment should not be placed on a bed,

sofa, rug, or similar surface that may block ventilation

openings; or, placed in a built-in installation, such as a

bookcase or cabinet, that may impede the flow of air

through the ventilation openings.

10. Locate the equipment away from heat sources such as

radiators, heat registers, stoves, or other appliance (in-

cluding amplifiers) that produce heat.

11. Mount the equipment in a wall or cabinet only as de-

scribed in this owners manual

12. Do not use this equipment near water; for example,

near a bathtub, washbowl, kitchen sink, laundry tub, in

a wet basement or near a swimming pool, etc.

13. Do not place this product on an unstable cart, stand,

tripod, bracket, or table. The equipment may fall, caus-

ing serious injury to a person, and serious damage to

the product.

Connection:

14. Connect this equipment only to the type of AC power

source as marked on the unit.

15. Route AC power cords so that they are not likely to be

walked on or pinched by items placed upon or against

them, paying particular attention to cords at plugs, con-

venience receptacles, and the point where they exit from

the instrument.

16. Do not defeat the inherent design features of the polar-

ized plug. Non-polarized line cord adapters will defeat

the safety provided by the polarized AC plug. If the

plug should fail to fit, contact your electrician to re-

place your obsolete outlet. Do not defeat the safety pur-

pose of the grounding-type plug.

WARNING SHOCK HAZARD -

DO NOT OPEN.

The lightning flash with arrowhead, within an equilateral

triangle, is intended to alert the user to the presence of

uninsulated dangerous voltage within the products

enclosure that may be of sufficient magnitude to consti-

tute a risk of electric shock to persons.

AVIS RISQUE DE CHOC -

NE PAS OUVRIR.

The exclamation point within an equilateral triangle is

intended to alert the user to the presence of important

operating and maintenance (servicing) instructions in

the literature accompanying the appliance.

NO USER-SERVICEABLE

PARTS INSIDE. REFER

SERVICING TO

QUALIFIED PERSONNEL

To prevent the risk of electric shock, do not remove

cover (or back). No user serviceable parts inside. Refer

servicing to qualified personnel.

4

Performance Features

Safety Instructions cont,

Introduction and Performance Features

Introduction

·Power Output

The MC162 consists of two separate power amplifier chan-

nels, each capable of 160 watts into 4ohm speakers with

less than 0.005% distortion. The two channels can be com-

bined into a single channel with 500 watts at 4 ohms or 320

watts at 8 ohms.

·High Current Output

A peak output current of 25 amperes per channel ensures

that the MC162 will successfully drive high quality loud-

speakers such as McIntosh for a truly exciting sound expe-

rience.

·Power Guard

Both channels include the patented McIntosh Power Guard

circuit that prevents the amplifier from being overdriven

into clipping with its harsh distorted sound that can also

damage your valuable loudspeakers.

·Sentry Monitor

McIntosh Sentry Monitor power output stage protection

circuits are present on both channels to ensure the MC162

will have a long and trouble free operating life.

·Thermal Protection

Built-in thermal protection circuits guard against overheat-

ing which could shorten the normal long life expectancy of

your McIntosh power amplifier.

·Illuminated Power Meters

The illuminated power output watt meters on the MC162

are peak responding, and indicate the power output of the

amplifier. The Peak Hold Mode allows the meters to tem-

porarily stay at the highest power output and then slowly

decay.

Now you can take advantage of traditional McIntosh stan-

dards of excellence in the MC162 power amplifier. Two

160 watt high current output channels will drive any high

quality loudspeaker system to its ultimate performance.

The MC162 reproduction is sonically transparent and abso-

lutely accurate. The McIntosh Sound is The Sound of the

Music Itself.

17. Do not overload wall outlets, extension cords or inte-

gral convenience receptacles as this can result in a risk

of fire or electric shock.

Care of Equipment:

18. Clean the instrument by dusting with a dry cloth. Un-

plug this equipment from the wall outlet and clean the

panel with a cloth moistened with a window cleaner. Do

not use liquid cleaners or aerosol cleaners.

19. Do not permit objects of any kind to be pushed and/or

fall into the equipment through enclosure openings.

Never spill liquids into the equipment through enclo-

sure openings.

20. Unplug the power cord from the AC power outlet when

left unused for a long period of time.

Repair of Equipment:

21. Unplug this equipment from the wall outlet and refer

servicing to a qualified service personnel under the fol-

lowing conditions:

A. The AC power cord or the plug has been damaged.

B. Objects have fallen, or liquid has been spilled into

the equipment.

C. The equipment has been exposed to rain or water.

D. The equipment does not operate normally by follow-

ing the operating instructions contained within this

owners manual. Adjust only those controls that are

covered by the operating instructions, as an im-

proper adjustment of other controls may result in

damage and will often require extensive work by a

qualified technician to restore the product to its nor-

mal operation.

E. The equipment has been dropped or damaged in any

way.

F. The equipment exhibits a distinct change in perfor-

mance - this indicates a need for service.

22. Do not attempt to service beyond that described in the

operating instructions. All other service should be re-

ferred to qualified service personnel.

23. When replacement parts are required, be sure the ser-

vice technician has used replacement parts specified by

McIntosh or have the same characteristics as the origi-

nal part. Unauthorized substitutions may result in fire,

electric shock, or other hazards.

24. Upon completion of any service or repairs to this prod-

uct, ask the service technician to perform safety checks

to determine that the product is in proper operating con-

dition.

5

Installation

Installation

The MC162 can be placed upright on a table or shelf,

standing on its four feet. It also can be custom installed in a

piece of furniture or cabinet of your choice. The required

panel cutout, ventilation cutout and unit dimensions are

shown.

Always provide adequate ventilation for your MC162.

Cool operation ensures the longest possible operating life

for any electronic instrument. Do not install the MC162

directly above a heat generating component such as a high

powered amplifier. If all the components are installed in a

single cabinet, a quiet running ventilation fan can be a defi-

nite asset in maintaining all the system components at the

coolest possible operating temperature.

A custom cabinet installation should provide the follow-

ing minimum spacing dimensions for cool operation. Allow

at least 2 inches (5.1cm) above the top and 1 inch (2.54

cm) on each side of the amplifier, so that airflow is not ob-

structed. 21 inches (53.3cm) depth behind the mounting

panel, which includes clearance for connectors. Allow 1-1/

8 inches (2.9cm) in front of the mounting panel for knob

clearance. Be sure to cut out a ventilation hole in the

mounting shelf according to the dimensions in the drawing.

NOTE: In Europe, if the MC162 is custom mounted, an

additional ventilation opening of 1-1/2 inch (3.8 cm) in

height, running the full width of the front panel, needs to

be directly above the front top of the MC162.

Front View of the MC162

custom installed

Side View of the MC162

custom installed

Bottom View of the MC162

custom installed

17-1/2"

444mm

17-1/16"

433.4mm

7/32"

5.3mm

Support Shelf

Outline of Front Panel

Edge of Cutout

Panel Height

5-5/16"

134.9mm

4-7/8"

123.8mm

1/4"

6mm

3/16"

5.1mm

End Caps

5-3/8"

136.9mm

Bottom of Cutout

and Top of Support

Shelf Must Coincide

Mounting Surface

Outline of Unit

(Side View)

Support Shelf

Mounting Bracket at Both Sides of the Rear Panel.

Fasten with 6-32 x 3/8 Machine Screw and Washer to Chassis.

Fasten with 6 x 1/2 Wood Screw and Washer to Support Shelf

6"

15"

9"

Mounting Surface

Cut Out Center

for Ventilation

(Bottom View)

(Front View)

See the note above

6

MC162 Rear Panel Controls and

Connections

Connect the MC162 power

cord to a live AC outlet. Refer

to information on the back

panel to determine the correct

voltage.

BALANCED INPUTS

for audio cables from a

preamplifier or control

center audio outputs

Input LEVEL controls

for Right and Left

channels

POWER CONTROL IN

receives turn on/off sig-

nals from a McIntosh

component and the

POWER CONTROL

OUT sends that turn on/

off signal to the next

McIntosh component.

UNBALANCED INPUTs

for audio cables from a

preamplifier or control

center audio output

OUTPUT Connections for

4 or 8 ohm loudspeakers

Main Fuse holder,

refer to infromation

on the back panel

of your MC162 to

determine the cor-

rect fuse size and

rating.

MC162 Rear Panel Controls and Connections

MODE switch selects

different modes of

operation

7

How to Connect the MC162

To AC Outlet

Left Loudspeaker

4ohm

1. Connect the MC162 power cord to a live AC outlet.

2. Connect a power control cable from the control center

Power Control Out to the MC162 Power Control In.

3. Connect the loudspeaker cables to the appropriate ter-

minals for your loudspeakers, being careful to observe

the correct polarities.

NOTE: To prevent the possibility

of user contact with

potentially dangerous

voltages, install the

protective cover(s) over

the loudspeaker output

terminals after the

loudspeaker cables have

been connected. The

covers and cover

mounting screws are

located in an accessory package that is enclosed in the

amplifier shipping carton. There are two types of

How to Connect the MC162

McIntosh C38 System Control Center

screws in the package. Install the protective covers

with the Phillips, 6-32 by 5/16 inch self tapping screws.

The other screws are No. 6 by ½ inch wood screws

used to secure the amplifier custom mounting brackets

to a shelf.

4. Connect a cable from the unbalanced outputs of a con-

trol center to the MC162 unbalanced Input connectors

for both audio channels and power control.

Note: An optional hookup is to use balanced cables from a

McIntosh Control Center to inputs of the MC162.

Pin configuration for the XLR Balanced Input

connectors on the MC162:

PIN 1: Shield or ground.

PIN 2: + input.

PIN 3: - input.

Right Loudspeaker

4ohm

8

MC162 Front Panel Displays

and Controls

MC162 Front Panel Displays and Controls

METERS indicate power output

of the amplifier channels

METER Switch selects

the display modes of the

power output meters

POWER GUARD LEDs

light when the amplifier

channel POWER GUARD

circuit activates

POWER Switch Turns

AC power on/off, or on/

remote

Remote On

Indicator

9

How to Operate the

MC162

How to Operate the MC162

Input Level Controls

When using a McIntosh Control Center set both level con-

trols to the 2.5V position. If a pream-

plifier or control center has a .9V out-

put rating set the controls to the .9V

position. If an increase or decrease in

amplifier sensitivity is required for

other applications, set the controls as

desired. Refer to Figure 1.

Power On

To have the MC162 turn on or off when a control center

turns on or off, rotate the power switch to the remote posi-

tion. For manual operation, rotate the power switch to the

on or off position as desired.

Note: There must be a power control connection between the

MC162 and the McIntosh Control Center in order for

the remote power turn on to function.

Mode Switch

The Mode switch allows both MC162 channels to be used

in two different operating configurations.

Stereo: Both channels operate independently as left and

right stereo 160 watt amplifiers.

Bridged: Both channels operate in bridged configuration

for a single monaural 500 watt amplifier.

Meter Selection

Rotate the meter mode switch to select the meter operation

mode you desire:

Lights Off - Meter lights are turned off, however the

meters will still be operating.

Watts - The meters respond to all the musical informa-

tion being produced by the amplifier and indi-

cate to an accuracy of at least 95% of the

power output of either amplifier channel.

Hold - The meter pointer is locked to the highest

power peak in a sequence of peaks. The meter

is electronically held to this power level until

another higher power peak passes through the

amplifier. The meter pointer will then rise to

the newer higher indication. If no further

power peaks are reached, the meter pointer

will very slowly return to its rest position or

lower power level.

The MC162 can be operated in Bridged Mono Mode for

500 watts into 4 ohms or 320 watts into 8 ohms. The

Bridged mode outputs are floating above chassis ground.

Refer to Figure 2.

1. Set the MC162 Mode switch to the Bridged position.

2. Adjust the Left Level control to the 2.5V position if

using a McIntosh Preamplifier or Control Center.

3. Connect the cable from the signal source component

to the Left input.

4. Connect the loudspeaker cables to the appropriate

bridged terminals

How to Operate the MC162 in Bridge Mode

Figure 1

Figure 2

How to Read the Power Output Meters

The MC162 Power Output Meter lower scales are based on

using 4 ohm loudspeakers. If 8 ohm speakers are used, the

actual power out put is one half the power available to 4

ohm loudspeakers. The upper meter scales indicate the

power output of each channel when the MC162 is con-

nected in bridged configuration into a 4 ohm loudspeaker.

Use the chart below to determine the actual power output

sent to your loudspeakers.

Lower Scale Meter Readings

Meter Reading With 4Ω Loudspeaker(s) With 8Ω Loudspeaker(s)

.016 .016 Watts .008 Watts

.16 .16 Watts .08 Watts

1.6 1.6 Watts .8 Watts

16 16 Watts 8 Watts

160 160 Watts 80 Watts

10

Specifications

Specifications

Power Output Per Channel

160 watts into 4 or 100 watts into 8 ohm loads is the mini-

mum sine wave continuous average power output per chan-

nel both channels operating.

Power Output Bridged

500 watts into 4 ohms or 320 watts into 8 ohm loads is the

minimum sine wave continuous average power output.

Output Load Impedance

4 or 8 ohms

Rated Power Band

20Hz to 20,000Hz

Dynamic Headroom

1.6dB

Frequency Response

+0, -0.25dB from 20Hz to 20,000Hz

+0, -3dB from 10Hz to 100,000Hz

Total Harmonic Distortion

0.005% maximum at any power level from 250 milliwatts

to rated power per channel from 20Hz to 20,000Hz, both

channels operating.

Intermodulation Distortion

0.005% maximum if instantaneous peak output per channel

does not exceed twice the rated output with both channels

operating for any combination of frequencies from 20Hz to

20,000Hz.

Signal To Noise Ratio

110dB below rated output

Sensitivity

.9 volts (2.0V at level control center detent position)

Input Impedance

10,000 ohms Unbalanced

22,000 ohms Balanced

Damping Factor

Greater than 100 at 4 ohms

Greater than 200 at 8 ohms

Power Requirements

100 Volts, 50/60Hz at 6.0 amps

110 Volts, 50/60Hz at 5.45 amps

120 Volts, 50/60Hz at 5.0 amps

220 Volts, 50/60Hz at 2.7 amps

230 Volts, 50/60Hz at 2.6 amps

240 Volts, 50/60Hz at 2.5 amps

NOTE: Refer to the rear panel of the MC162 for the correct

voltage

Dimensions

Front Panel: 17/1/2 inches (44.5cm) wide, 5-3/8 inches

(13.7cm) high. Depth behind front mounting panel is 18 1/

2 inches (47cm) including clearance for connectors. Panel

clearance required in front of mounting panel is 1-1/8

inches (2.9cm).

Weight

42 pounds (19.1 Kg) net, 60 pounds (27.2 Kg) in shipping

carton

11

Packing Instructions

In the event it is necessary to repack the equipment for

shipment, the equipment must be packed exactly as shown

below. It is very important that the four plastic feet are at-

tached to the bottom of the equipment. Three #10 x 2-1/4

screws and washers must be used to fasten the unit securely

to the bottom pad and wood skid This will ensure the

proper equipment location on the bottom pad. Failure to do

this will result in shipping damage.

Use the original shipping carton and interior parts only if

they are all in good serviceable condition. If a shipping car-

ton or any of the interior part(s) are needed, please call or

write Customer Service Department of McIntosh Labora-

tory. Please see the Part List for the correct part numbers.

Quantity Part Number Description

1 033838 Shipping carton only

4 033837 End cap (Foam pad)

1 033836 Inside carton only

1 033725 Top Pad

1 034008 Bottom pad

3 017218 Plastic foot (spacer)

1 033699 Wood skid

3 101169 #10 x 2-¼ Wood screw

3 104033 #10 x 1-¾ Wood screw

4 017218 Plastic foot

4 100159 #10-32 x ¾ Machine screw

4 104083 #10 x 7/16 Flat washer

1 049107 Shipping carton complete with

all the above parts

Packing Instructions

McIntosh Part No. 04054901

McIntosh Laboratory, Inc.

2 Chambers Street

Binghamton, NY 13903